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Find out all about the different parts of the eyes and how they work together to make vision possible.

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

What is wind energy? Teach your students how we can use the wind to create electricity!

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Can you explain why your blue shirt is blue? This worksheet is full of facts about light and how it reacts with objects to give us the perception of color.

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.